Note that on On Windows 7, Vista and Server 2008, SpiderOak will be running on the
isolated Session 0 - an off-screen desktop where Windows Services reside.
If you wish to see the SpiderOak window, select Tools > Switch to Session 0...:

We encourage you to edit SpiderOak in AlwaysUp and check out the many other settings that may be appropriate for your environment.
For example, to hide SpiderOak completely and avoid prompts from the annoying Interactive services dialog detection window,
check the When a user logs on, don't show the application's windows... box on the LogOn tab.